close up of chestnut backed chickadee poecile rufescens perched on a wooden ledge; blurred background, san francisco bay area,

america american animal area atricapillus avian backed bay beautiful bird birdwatching black brown california capped chestnut chestnutbacked chickadee close colorful copy cute fauna feather feathers fence francisco free head ledge native nature ornithology outdoors perched plumage poecile portrait rufescens san small song songbird space states tiny united usa view watching white wild wildlife wooden